Overview
Features
High grade NBR.
Applications
Cutting gaskets for sealing between the tank and the lid of immersed electrical transformers in contact with synthetic dielectric and mineral oils.

No resistance to pyralene.
Advantages
Excellent mechanical properties, compression set in particular
Excellent temperature resistance
Excellent low temperature resistance
Excellent ageing resistance
Excellent hydrocarbons resistance
Matte finish to guarantee a good surface finished quality and to secure an easy unrolling.
Benefits
Reliability
Safety
Mechanical, Physical and Chemical Properties
Mechanical
Measure characteristic Standard Value
Density 1.30 ± 0.05 g/cm³
Hardness ASTM D2240 70 ± 5 Shore A
Tensile strength ISO 37 ≥ 13 MPa
Elongation at break ISO 37 ≥ 300 %
Tear resistance, Crescent specimen ISO 34-1 ≥20 N/mm
Compression set after 70h at 100°C ISO 815-1 ≤40 %
Temperature
Measure characteristic Standard Value
Working temperature -40/+130 °C
Ageing
Measure characteristic Standard Value
∆ Tensile strength after 168h at 70°C ASTM D573 ≤-20 %
∆ Elongation at break after 168h at 70°C ASTM D573 ≤-30 %
Oil IRM 903, Δ Tensile strength after 72h at 100°C ASTM D573 ≤-20 %
Oil IRM 903, Δ Elongation at break after 72h at 100°C ASTM D573 ≤-40 %
Ozone resistance, 50 pphm, 48h, 40ºC, 20% ASTM D1149 type A Without cracks %
Oil Resistance
Measure characteristic Standard Value
Oil IRM 901, ∆ volume after 70h at 100°C ASTM D471 -20/5 %
Oil IRM 903, ∆ volume after 70h at 100°C ASTM D471 ±5 %
Chemical Resistance
Diluted acids and bases Concentrated acids and bases Ozone Oils and hydrocarbons
Very good Good Good Very good
Dimensions
Downloads

Rubber Sheeting and Matting

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